# -*- coding: utf-8 -*-


def main():
    import sys
    input = sys.stdin.readline

    x = int(input())

    if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8')


if __name__ == '__main__':
    main() def main():
    import sys
    input = sys.stdin.readline

    x = int(input())

    if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8') main import sys sys input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline x = int(input()) x int(input()) int input() input if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8') x >= 1800 x 1800 print('1') print '1' elif x >= 1600:
        print('2')
     x >= 1600 x 1600 print('2') print '2' elif x >= 1400:
        print('3')
     x >= 1400 x 1400 print('3') print '3' elif x >= 1200:
        print('4')
     x >= 1200 x 1200 print('4') print '4' elif x >= 1000:
        print('5')
     x >= 1000 x 1000 print('5') print '5' elif x >= 800:
        print('6')
     x >= 800 x 800 print('6') print '6' elif x >= 600:
        print('7')
     x >= 600 x 600 print('7') print '7' elif x >= 400:
        print('8') x >= 400 x 400 print('8') print '8' if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main def main():
    import sys
    input = sys.stdin.readline

    x = int(input())

    if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8') def main():
    import sys
    input = sys.stdin.readline

    x = int(input())

    if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8') main
# -*- coding: utf-8 -*-


def main():
    import sys
    input = sys.stdin.readline

    x = int(input())

    if x >= 1800:
        print('1')
    elif x >= 1600:
        print('2')
    elif x >= 1400:
        print('3')
    elif x >= 1200:
        print('4')
    elif x >= 1000:
        print('5')
    elif x >= 800:
        print('6')
    elif x >= 600:
        print('7')
    elif x >= 400:
        print('8')


if __name__ == '__main__':
    main()
